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Titolo:
DENDRITIC INTEGRATION AND ITS ROLE IN COMPUTING IMAGE VELOCITY
Autore:
SINGLE S; BORST A;
Indirizzi:
MAX PLANCK SOC,FRIEDRICH MIESCHER LAB,SPEMANNSTR 37-39 D-72076 TUBINGEN GERMANY MAX PLANCK SOC,FRIEDRICH MIESCHER LAB D-72076 TUBINGEN GERMANY
Titolo Testata:
Science
fascicolo: 5384, volume: 281, anno: 1998,
pagine: 1848 - 1850
SICI:
0036-8075(1998)281:5384<1848:DIAIRI>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTRINSIC ELECTROPHYSIOLOGICAL CHARACTERISTICS; BLOWFLY CALLIPHORA-ERYTHROCEPHALA; VISUAL-MOTION DETECTION; PLATE TANGENTIAL CELLS; LOBULA PLATE; CALCIUM ACCUMULATION; MEMBRANE-PROPERTIES; HORIZONTAL CELLS; FLY; INTERNEURONS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
S. Single e A. Borst, "DENDRITIC INTEGRATION AND ITS ROLE IN COMPUTING IMAGE VELOCITY", Science, 281(5384), 1998, pp. 1848-1850

Abstract

The mechanisms underlying visual motion detection can be studied simultaneously in different cell compartments in vivo by using calcium as a reporter of the spatiotemporal activity distribution in single motion-sensitive cells of the fly. As predicted by the Reichardt model, Local dendritic calcium signals are found to indicate the direction and velocity of pattern motion but are corrupted by spatial pattern properties. The latter are canceled out by spatial integration, thus Leading to a purely directional selective output signal in the axon. These;findings attribute a specific computational task to the dendrites of visual interneurons and imply a functional interpretation of dendritic morphology.

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Documento generato il 08/07/20 alle ore 07:53:54